OS-specific commands in Terraform local-exec

main.tf

locals {
  platform = substr(pathexpand("~"),0,1) == "/" ? "linux" : "windows"
  command_map = {
    windows = {
      interpreter = "powershell",
      command = "While( -not $(az account list-locations)){ Start-Sleep 5 }; echo Done!"
    }
    linux = {
      interpreter = "bash",
      command = "while ! az account list-locations){ Sleep 5 }; echo Done!"
    }
  }
}

# Wait for Azure CLI to complete without explicit dependency
resource "null_resource" "localexec" {
  provisioner "local-exec" {
    command= lookup(local.command_map, local.platform, null).command
    interpreter = [lookup(local.command_map, local.platform, null).interpreter]
  }
  triggers = {
      trigger = timestamp()
  }
}

# Log into Azure via CLI
resource "null_resource" "localexec2" {
  provisioner "local-exec" {
    command = "az login -o none --only-show-errors"
  }
  triggers = {
      trigger = timestamp()
  }
}